The Omega Centauri globular cluster in the constellation of Centaurus. At a distance of 17090 light-years, this is the largest and most massive known globular cluster in the Milky Way.
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I have superposed an image processed from Telescope Live images and a European Space Organisation (ESO) image from https://www.eso.org/public/images/eso0903a . The light brown is 870 m...